Lubricating device



H. R. MCCUSH LUBRICATING DEVCE Filed June 20. 1925 /A TTURNEYS.

Patented Nov. 30, 1926. UlTED STATES PATENT: OFFMIE.

HAROLD R. MoCLIS-I, OE HEALDSBURG, CALIFORNIA.

LUBRICATING DEVICE.

Application led June 20, 1923. Serial No. 648,611.

The present invention relates to improvedrical member (29), the top plate (3l) and ments in lubricating devices and has particuthe bottom plate (32) which latter rests on lar reference to a device for forcing lgrease a shoulder (33) formed in a supporting` into bearings or the like under pressure. member (34) the lower dnd of which extends 60 The particular object of the invention is to through the base plate and is secured by provide a device of this character that is means of the nut (36). A piston (37) prefvery simple in construction, can be made very erably consisting of a solid disk (38) of the cheaply and is easy to manipulate. same diameter as the inside of the cylinder,

The preferred form of the invention is ilthe flexible cup (39) and holding` disk (4l) lustrated in the accompanying drawing in of smaller diameter is secured to the lower which Figure l shows a vertical section end of the rod (42) by means of the nut through my device, Figure 2 a. perspective ('43). The latter rod is threaded almost detail view of a nut section and Figure .3 throughout its entire length, leaving only a. a perspective view of a top portion of a supsmall lower portion unthreaded. The

ply cylinder forming part of my device. bottom. face of the top plate (3l) has a lVhile I have shown only the preferred form channel iron (44) secured thereto with its of my invention, I wish to have it underflanges pointing downwardly. The channel stood that various changes or modifications iron stretches diametrically across the face may be made within the scope of the claim leaving enough space in the center to allow hereto attached without departing from the the rod (49.) to pass thereto In the flanges spirit of the invention. of the channel iron are supported, on oppo- My lubricating device comprises in its site sides of the rod two Sections (46) oi a principal features a supply cylinder (l) and nut, One of these sections is shown in dea pressure cylinder (2) both of which are tail in Figure 2 from which it appears that mounted in operative proximity on a bese the sect-ions are threaded interiorly as shown (3). The pressure cylinder is preferably at (47) while near their outer edges (48) made of two parts the lower part (4) termithey are perforated as shown at (49) to renating at one end in a reduced extension (6) ceive pins (5l) on which the nut sections adapted to be passed through a perforation are hinged. The perforations (49) are dis- 85 lIl 'Clie base al'lCl t0 I'BCelVe lille Hut (S) posed near the upper faces 0f the nut Seewhich latter disappears in a counter sunk tions to prevent binding` aotion and the portion of the base. rlhe upper part (9) is edges (52) nearest the perforations (49) cored as Shown at (l1) 21nd temmetee et are rounded off as shown in the drawing.

its-lower end in a reduced threaded portion When the rod is rotated by means of the 9@ (l2) adapted to be received in a threaded handle (53) While the two nnb Seotiong are recess (13) of the lower member. A POl in a horizontal position( the rod will be (14) is provided in the lOWel member (4:) forced downwardly causing the piston to and communicates Wltll the COF@ (l1) move and t0 force a lubricant contained in through a sleeve (16) threaded into the lower the cylinder through the port (28) into the 95 49 portion of the upper part. 'lhe sleeve forms pressure Cylinder, The reaction of the Cenaa Seat OI. e ball' (i8) Which Se'VeS le e pressed lubricant on the piston serves to check valve and is prevented `from rising' hold the two nut sections in their operative abOVe 21 Cerf/ille helgllt by e- P111 (19)- A position as long as only a turning motion port- (20) PI'OVl-Cled elOOVe the Cheek Vilhfe is used. But if the operator should press communicates with a flexible tube (20') the piston downwardly by Straight lonojwhich may be secured in any Suitable mantudinal motion the two cut sections would ner to the point of application. A piston Swing on their hinges and become digen- (21) is adapted to reciprocate `in the core gaged from the rod. This disengaing acof the cylinder and is secured by means of a tion is opposed by springs (54) dispbsed belever handle (22)engaging the piston at (23) tween the top of the top plate and the two and fulcrumed to a bar (24) as shown at arms (56) 0f a handle (57) which latter is (26) which latter bar is pivoted to a pipe pivoted to two standards (58). An inter- (27) connecting the port (14) in the memmediate portion of each arm (56) has a rod ber (4) with a port (28) in the bottom of (59) suspended therefrom and the lower end '5 the supply cylinder. of each rod is pivoted to a nut section as The latter cylinder comprises the cylinshown at (61). While the springs (54) have a tendency to lift the two nut sections into the horizontal or operative position a slight pressure on the handle (57) may overcome this tendency and may hold the two nut sections in the inoperative position shown in dotted lines in Figure 1 thus giving the operator an opportunity to pull t-he piston upwardly by straight longitudinal motion.

The operation of the device should be readily understood from the foregoing de scription.

The supply cylinder (l) is filled with proper lubricant such as grease and the latter is forced into the force pump by turning the handle (53). When the chamber ot the force pump is filled the handle depressed and the grease which is prevented from returning through the pipe (27) by the check valve (18) is forced through the flexible member (20') into the bearing to be greased. When the supply cylinder is nearly empty the operator turns the hande (53) in the opposite direction for a short distance then presses the handle downward whereby the two nut sections (46) are dis|- engaged from the rod. `With one hand bearing on the handle (57) so as to hold the two nut sections in their inoperative positions the operator pulls the piston upwardly by straight longitudinal motion until the Leoegro'r smooth portion (45) of the rod reaches the top plate. The operator then releases the handle (57) which is pressed upward by the springs (54) whereby the nuts are returned to their operative position, Turning the handle to the right then reengages the threaded portion of the rod with the nut sections and after the cylinder has been re-filled the operator may continue his work.

l claim:

in a. lubricating device a closure member having' an aperture therethrough, a screw threaded stem passing` through said aperture, a split nut carried by said closure member which may be moved into and out of operative relation with the said threaded stem and comprising a pair of opposed sections pivotally mounted on said closure member on the underside thereof, links secured to said sections and extending upwardly through said closure member, a manually operable pivoted member through which the upper ends of said links are secured, adapted to move said sections out of operative relation to said threaded stern and l resilient means encircling the links, tending to hol-:l said sections in engagement with said stems.

HAROLD R. MCCLISH. 

